“Backsliding,” continued Settembrini, as he lifted his umbrella away above the head of a passerby, “spiritual backsliding in the direction of that dark and tortured age, that, believe me, Engineer, is disease⁠—a disease already sufficiently studied, to which various names have been given: one from the terminology of aesthetics and psychology, another from the domain of politics⁠—all of them academic terms which are not to the point, and which I will spare you. But as in the spiritual life everything is interrelated, one thing growing out of another, and since one may not reach out one’s little finger to the Devil, lest he take the whole hand, and therewith the whole man; since, on the other side, a sound principle can produce only sound results, no matter which end one begins at⁠—so disease, far from being something too refined, too worthy of reverence, to be associated with dullness, is, in itself, a degradation of mankind, a degradation painful and offensive to conceive. It may, in the individual case, be treated with consideration; but to pay it homage is⁠—mark my words⁠—an aberration, and the beginning of intellectual confusion.